Kingsbox Neutral Grip Bars are made from high-quality steel. They are compatible with plate-loaded and bumper-loaded pulley machines. These handles allow you to perform a variety of exercises such as Wide Grip Lat Pulldowns, Close Grip Lat Pulldowns, Straight Arm Pulldowns, Neutral Grip Pulldowns and Neutral Grip Rows.The long natural grip and short natural grip handles are fully chromed. This means they can withstand heavy use and are fully protected from scratches. The knurling on the grips is CNC machined and is medium strong, so for those who want pulley attachments with a strong grip, we recommend the chromed pulley grips. The natural bend handle is also chrome coated, but the grip positions are covered with rubber for a better and stronger grip even when the hands get sweaty.